Normal reference values for mechanical mitral prosthetic valve inner diameters and areas assessed by two-dimensional and real-time three-dimensional transesophageal echocardiography

Macit Kalçık, Mehmet Özkan, Sabahattin Gündüz, Mustafa Ozan Gürsoy, Mahmut Yesin, Emrah Bayam, Ahmet Güner, Semih Kalkan, Süleyman Karakoyun, Halil İbrahim Tanboğa

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

It was previously observed that two dimensional (2D) Doppler derived and real-time three-dimensional (RT-3D) directly measured valve areas were smaller than reported manufacturer sizes. It may be helpful to obtain the ranges of inner diameters (IDs) and the geometric orifice area (GOA) during evaluation of prosthetic mitral valves. In this study, we aimed to provide reference dimensional parameters of bileflet mitral mechanical prosthetic valves. Patients with recent mitral valve replacement were examined by 2D and RT-3D transesophageal echocardiography (TEE) in the early postoperative period when the presence of pannus overgrowth was unlikely. Measurements of 2D IDs, 3D hinge to hinge (HHD) and edge to edge diameters (EED) and 3D GOA were obtained and compared with reported manufacturer sizes and areas. This study enrolled 126 patients with mitral prosthetic valves (38 ATS, 42 Carbomedics, 46 St. Jude Medical, all bileaflet). The measured 2D and 3D IDs and GOA were significantly smaller than reported manufacturer sizes in the majority of the valve sizes. This RT-3D TEE-guided study provides ranges of reference values for directly measured IDs and GOA of the three most commonly used mechanical mitral prosthetic valve types for the first time in a relatively large series.

Original languageEnglish
Pages (from-to)547-557
Number of pages11
JournalInternational Journal of Cardiovascular Imaging
Volume37
Issue number2
DOIs
Publication statusPublished - Feb 2021
Externally publishedYes

Keywords

  • Echocardiography
  • Inner diameter
  • Orifice area
  • Prosthetic valve
  • Transesophageal echocardiography

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